Patent USRE25924E successfully refreshed from Google Patents.
US3725901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for representing measured values on the screen of a video apparatus
Assignee: Siemens AG
•
Filing: 1971-03-29
•
Granted: 1973-04-03
•
Expires: 1991-03-29
Abstract
Abstract For the reproduction of measured values on the screen of a line scanning video apparatus, the intensity of the beam current thereof is modulated with unblanking signals to a mean value during the writing of each line between the image field edge and the unblanked image dots of the measured values. The beam current and consequently the intensity of the beam for the latter is greater than the said mean value. The frequency value of the unblanking signals is such that the bright-modulated image dots are no larger than the image elements.
Inventors
- 👤 E Lehari
- 👤 M Schwarztrauber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/14; G09G1/16; G09G1/162; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
240 words
A method of representing measured values on the screen of a beam intensity modulated line scanning video apparatus comprising: comparing signals corresponding to the measured values to be represented with the position of value of beat pulses summed in a counter, generating a first pulse unblanking signal upon coincidence of the signals corresponding to the measured values and the positional value of said beat pulses, generating a second unblanking signal in the form of a train of pulses the individual pulses widths of which are less than that of said first pulse, modulating the intensity of the beam current with said first pulse unblanking signal to thereby produce a value dot having a given brightness over its dimension in the scanning direction on the screen at a position such that the distance of said value dot from the edge of the image field within which measured values are produced corresponds to the magnitude of a measured value, and modulating, with said second unblanking signal, the intensity of the beam current of the video apparatus during the writing of each line between the edge of the image field and the value dots to a mean intensity which is less than the intensity of the beam current used for producing said value dots of said given brightness, the resulting mean brightness of each line length between the edge of the image field and the value dots being less than said given brightness.
Claim 2
Independent Claim
240 words
A method of representing measured values on the screen of a beam intensity modulated line scanning video apparatus comprising: comparing signals corresponding to the measured values to be represented with the position of value of beat pulses summed in a counter, generating a first pulse unblanking signal upon coincidence of the signals corresponding to the measured values and the positional value of said beat pulses, generating a second unblanking signal in the form of a train of pulses the individual pulses widths of which are less than that of said first pulse, modulating the intensity of the beam current with said first pulse unblanking signal to thereby produce a value dot having a given brightness over its dimension in the scanning direction on the screen at a position such that the distance of said value dot from the edge of the image field within which measured values are produced corresponds to the magnitude of a measured value, and modulating, with said second unblanking signal, the intensity of the beam current of the video apparatus during the writing of each line between the edge of the image field and the value dots to a mean intensity which is less than the intensity of the beam current used for producing said value dots of said given brightness, the resulting mean brightness of each line length between the edge of the image field and the value dots being less than said given brightness.
Claim 3
Dependent Claim
79 words
A method as defined in claim 1 wherein the intensity of the beam current of the video apparatus is modulated during the writing of each line between the edge of the image field and the value dots with said second unblanking signal having a frequency such that image dots are formed between the edge of the image field and the value dots, the brightness of each image dot being equal at most to that of the smallest image element.
Claim 4
Dependent Claim
25 words
A method as defined in claim 1, wherein the beam current is modulated by said second unblanking signal at the frequency of said beat pulses.
Claim 5
Dependent Claim
43 words
A method as defined in claim 2 including the step of joining respectively said first unblanking signal for each of the value dots to that part of said second unblanking signal for that image dot which is the last in each respective line.
Claim 6
Dependent Claim
45 words
A method as defined in claim 2, wherein said video apparatus includes a shadow mask-type color television picture tube and wherein the beam current is modulated with a frequency such that at any time only a sole dot triad of the picture tube is excited.
Claim 7
Dependent Claim
64 words
A method as defined in claim 1, including the steps of modulating the beam current with a third unblanking signal to represent coordinate lines on the screen when said first and said second unblanking signals are absent and modulating the beam current with a blanking signal when either of said first and said second unblanking signals is simultaneously present for the production of dots.
Claim 8
Dependent Claim
244 words
A circuit for modulating the beam intensity of a beam intensity modulated line scanning video apparatus adaptEd to visually display measured values on the screen of the video apparatus in the form of a histogram composed of value dots and area dots wherein said area dots are formed between the value dots and the edge of the image field within which measured values are presented and the distance from a value dot to the edge of the image field corresponds to the magnitude of a measured value comprising: a trigger pair having a first, a second and a third input and an output, means for applying a first signal to said first input for setting said trigger, means for applying a second signal to said second input for generating a release signal at the output of said trigger pair, means for producing a first unblanking signal corresponding to a value dot, means for applying a third signal to said third input for resetting said trigger in accordance with the writing of any said value dot on the screen and gate means having a first input connected to the output of said trigger pair, a second input connected to receive a second unblanking signal in the form of beat pulses and a third input connected to receive said first unblanking signal, and output means for delivering composite unblanking signals for modulating the beam intensity whereby the writing of area dots and value dots is controlled.
Claim 9
Dependent Claim
244 words
A circuit for modulating the beam intensity of a beam intensity modulated line scanning video apparatus adaptEd to visually display measured values on the screen of the video apparatus in the form of a histogram composed of value dots and area dots wherein said area dots are formed between the value dots and the edge of the image field within which measured values are presented and the distance from a value dot to the edge of the image field corresponds to the magnitude of a measured value comprising: a trigger pair having a first, a second and a third input and an output, means for applying a first signal to said first input for setting said trigger, means for applying a second signal to said second input for generating a release signal at the output of said trigger pair, means for producing a first unblanking signal corresponding to a value dot, means for applying a third signal to said third input for resetting said trigger in accordance with the writing of any said value dot on the screen and gate means having a first input connected to the output of said trigger pair, a second input connected to receive a second unblanking signal in the form of beat pulses and a third input connected to receive said first unblanking signal, and output means for delivering composite unblanking signals for modulating the beam intensity whereby the writing of area dots and value dots is controlled.
Claim 10
Dependent Claim
64 words
A circuit as set forth in claim 7 wherein said gate means comprises a first gate having a first input means connected to receive the output of said trigger pair and a second input means for receiving said second unblanking signal, the duration of said first unblanking signal being twice the duration of the pulses which form said second unblanking signal for area dots.
Claim 11
Dependent Claim
64 words
A circuit as set forth in claim 8 further including a beat pulse counter and a comparator circuit for comparing the digital value of the measured values with the output of said counter and means for developing said first unblanking signal for the representation of the value dots and means for applying said first unblanking signal to said third input of said triggered pair.
Claim 12
Dependent Claim
62 words
A circuit as set forth in claim 9 wherein said gate means comprises a second gate and a third gate, said second gate having a first input connected to receive said first unblanking signal and an output connected to the first input of said third gate, a second input of said third gate being connected to the output of said first gate.
Claim 13
Dependent Claim
21 words
A circuit as set forth in claim 10 wherein said second gate includes a second input connected to receive beat pulses.
Claim 14
Dependent Claim
24 words
A circuit as set forth in claim 10 wherein said gate means and said first, said second and said third gates are NAND circuits.
Claim 15
Independent Claim
221 words
A method of representing measured values on the screen of a beam intensity modulated line scanning video apparatus comprising: comparing signals corresponding to the measured values to be represented with the position of value of beat pulses summed in a counter, generating a first unblanking signal in the form of a pulse upon the coincidence of the signals corresponding to the measured values and the proportional value of said beat pulses, generating a second unblanking signal, modulating the intensity of the beam current with said first unblanking signal to thereby produce a value dot having a given brightness over its dimension in the scanning direction on the screen at a position such that the distance of said value dot from the edge of the image field within which measure values are produced corresponds to the magnitude of a measured value, and modulating, with said second unblanking signal, the intensity of the beam current of the video apparatus during the writing of each line between the edge of the image field and the value dots to a mean intensity which is less than the intensity of the beam current used for producing said value dots of given brightness, the resulting means brightness of each line between the edge of the image field and the value dots being less than said given brightness.
Claim 16
Independent Claim
221 words
A method of representing measured values on the screen of a beam intensity modulated line scanning video apparatus comprising: comparing signals corresponding to the measured values to be represented with the position of value of beat pulses summed in a counter, generating a first unblanking signal in the form of a pulse upon the coincidence of the signals corresponding to the measured values and the proportional value of said beat pulses, generating a second unblanking signal, modulating the intensity of the beam current with said first unblanking signal to thereby produce a value dot having a given brightness over its dimension in the scanning direction on the screen at a position such that the distance of said value dot from the edge of the image field within which measure values are produced corresponds to the magnitude of a measured value, and modulating, with said second unblanking signal, the intensity of the beam current of the video apparatus during the writing of each line between the edge of the image field and the value dots to a mean intensity which is less than the intensity of the beam current used for producing said value dots of given brightness, the resulting means brightness of each line between the edge of the image field and the value dots being less than said given brightness.
References Cited (Backward Citations)
US3343030A
Cited
US3406387A
Cited
US3382436A
Cited
US3474438A
Cited
US3603963A
Cited
US3585440A
Cited
US3648270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |